"Let me get this straight. You have had been... practicing, for the lack of better word, how to... ahem, inflict this... travesty?" - deadpanned Luna, carefully picking her way through the horror. To her credit, Celestia managed to look abashed, at the very least. The room around her was decisively unrepentant, however. And... palatable. Enticing, even.
Luna rubbed her nose with a hoof. "You jest. Surely, you must be jesting, sister. Please tell me you`re jesting." - she proffered pleadingly, carefully clearing out a safe space for her to stand. It was a daunting task, rife with perils of jam and crumbling. Still, the persevered, knowing full well that failure to do so would violate her coat with... all manners of violations.
"I`m sorry, I didn`t quite think it would be THAT much." - proffered Celestia contritely, tucking the "book" under her arm. As all things from Discord, the term book applied to the thing rather... loosely. For once, it was made out of laminated alfalfa. For twice, it was quietly yodeling. For thrice, it smelled like licorice. All the piddly details nonwithstanding, it was indeed a book, proudly labeled "Minor chaos incantations and cantrips, by Dis-C.Ord."
"Just... fine. Nevermind. Just... why. I don`t want to know the how, the where, the when or the what, just tell me, in the name of all that is sane and good, WHY? Why are you practicing chaos spells?" - implored Luna, finally managing to ensure a perimeter of cleanliness around herself. Past the border, chaos began immediately. Sticky, crumbly chaos.
"I... Lulu, don`t take this the wrong way, please, but... we`re kind of going... stale." - mumbled Celestia, as she tried to discard "book" without looking like she was doing it. Not much luck with that. Luna`s hoof connected to her own forehead with a resounding "clop".
"You wanted to... spice things up with... chaos magic?" - she questioned incredulously. Celestia nodded, begrudgingly, sweeping the errant muffin from her flank. "And for the first order of things, you filled our bedroom with muffins?" - she continued. Celestia nodded again, sulkily. Luna inhaled. Exhaled. Inhaled again. Sighed. "...Fine. I just... I don`t even..." - after a few failed tries, she finally got the sentence together - "Tia. Get out of here, and go to showers. You have fifteen minutes to get presentable. We`re going on vacation, effective immediately." Celestia looked like she was about to object for a moment, then shook her head and smiled, gingerly picking her way through the flaking pastry.
Luna glared at the "book". Then walked out of the bedroom and locked the door behind herself. It would be absolute nightmare on maids, but then again, they were paid lavishly specifically due to this kind of thing. She was incredibly grateful her own advice came from Cadence and not from Discord. While she couldn`t dispute that Discord knew a thing or two about giving things a fresh twist, she just didn`t feel ready for, ahem... bedroom advice from him. Not yet. Maybe in a few more centuries. For now, romantic getaways and dreamy dates would do quite nicely. Quite nicely, indeed.